{
  "cveId": "CVE-2026-80545",
  "url": "https://patchblox.com/security/cve/CVE-2026-80545",
  "summary": "CVE-2026-80545 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80545 (version 7.1.10-1), released September 4, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  s390/zcrypt: Improve EP11 CPRB length and overfl...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  s390/zcrypt: Improve EP11 CPRB length and overflow checks  The xcrb_msg_to_type6_ep11cprb_msgx() function lacks proper input validation, creating security vulnerabilities: 1. Missing minimum size validation: The ep11_cprb structure and    subsequent payload fields (pld_tag, pld_lenfmt) are copied from    userspace without verifying sufficient buffer length. 2. Arithmetic overflow in length calculations: CEIL4 alignment could    overflow, bypassing size checks and enabling buffer overflows. 3. The payload is asn1 encoded but the function just uses a simple c    struct overlay to access some fields of the payload.  Fix by using size_t for length calculations, adding U32_MAX boundary checks after alignment, and validating minimum request size and minimum reply size before copying from userspace. Do a very simple asn1 parsing of the payload up to the function value field.",
  "published": "2026-08-26T15:17:08Z",
  "severity": "high",
  "cvss": 7.8,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "epss": 0.00192,
  "epssPercentile": 0.08895,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.1.10-1",
      "fix": "DEBIAN-CVE-2026-80545",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-80545",
      "released": "2026-09-04T01:46:23Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}